2123231232 has 104 divisors (see below), whose sum is σ = 5708799360. Its totient is φ = 701808640.

The previous prime is 2123231213. The next prime is 2123231267. The reversal of 2123231232 is 2321323212.

It is a happy number.

It is a super-2 number, since 2×2123231232² = 9016221729080475648, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 2123231199 and 2123231208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1609069 + ... + 1610387.

Almost surely, 2^2123231232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2123231232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2854399680).

2123231232 is an abundant number, since it is smaller than the sum of its proper divisors (3585568128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2123231232 is a wasteful number, since it uses less digits than its factorization.

2123231232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477 (or 1455 counting only the distinct ones).

The product of its digits is 864, while the sum is 21.

The square root of 2123231232 is about 46078.5333099915. The cubic root of 2123231232 is about 1285.2839903848.

Adding to 2123231232 its reverse (2321323212), we get a palindrome (4444554444).

The spelling of 2123231232 in words is "two billion, one hundred twenty-three million, two hundred thirty-one thousand, two hundred thirty-two".